Drier



Dec 24, 3935. W L. MARTlN V 2,025,172

DRIER Filed April 4, 1952 2 sheets-sheet .24

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Patented Dec. 24, 1935 UNITED STATES PATENT OFFICE DRIER Wendell L. Martin, Cleveland, Ohio, assignor to The Martin Brothers Electric Company, Cleveland, Ohio, a corporation of Ohio Application April 4, 1932, Serial No. 603,024

My invention relates to driers,

7 Claims.

and has particular reference to driers for use in drying hair, or the hands, or the like, and the principal object of my invention is to provide a new drier of this type.

and improved In the drawings accompanying this specification and forming a part of this application, I

have shown, for the purpose of illustration, one

form which my invention may as these drawings:

Figure 1 is a side elevation of sume, and in a drier constructed in accordance'with my invention in its retracted position,

Figure 2 is a view similarto Figure 1, but

showing the drier in its operative position,

to an operative position.

With reference to the drawings, structed in accordance with my a drier coninvention 1s shown as comprising a substantially cylindrical hood I which is adapted to be directed toward the head and hair of the person whose hair is being dried, and which may, if desired,

at least partially embrace the same. This hood is carried by a casing 2 which contains the motor which drives a fan, such as is shown in detail in my co-pending application for Letters Patent, S 603,023. The casing 2 is secured t by a housing 3 which contains a s erial Number o and carried uitable clockwork mechanism. for controlling the temperature of the heating element and the operation of the motor, as is also disclosed in my co-pending application above identified.

The above mentioned instrumentalities are al1 carried by a tubular support 4 by means of mechanism for permitting the. drier to be swung both horizontally and vertically in order same relative to the object being to adjust the dried. This mechanism includes a bracket 5 which is mounted on the upper end of the support 4 for swinging movement about a vertical axis and which is provided with a centrally disposed upwardly extending flange 6 formed with a bearing I adjacent to its upper extremity,in which a stud shaft 8 is iixed by means of a set-screw 9. Pivotally mounted on the shaft 8 is a bell crank lev biiurcated to provide ears II and er I0 which is I2 for pivotal engagement with the shaft 8 on opposite sides of the bearing l. A clamping nut I 3 is threaded onto one end of the shaft 8 and is adapted to be rotated to clamp the ear I I against the bearing I in order toy x the drier in the desired adjusted position. Washers I4, and a spring washer I5, may be interposed between the nut I3 and the ear 5 II so as to provide a certain degree of irictional resistance to the movement of the drier when its angularity is adjusted.

One arm I6 of the bell crank lever I0 is bifurcated and is pivotally connected by means of a 10 pin I1 to opposite sides of a centrally disposed depending iiange I8 formed on the housing 3 and the other arm I9 of the bell crank lever I0 is provided with a handle by means of which the bell crank lever I0 may be rotated when the nut I3 is l5 loosened in order to swing the drying mechanism in adjusting the same relative to the object being dried.

A substantially arcuate link 2! provided with bifurcated extremities is pivotally connected at 2o its upper end by means of a pin 22 to the opposite sides of the ilange I8 and is also pivotally connected at its lower end by a pin 23 to the opposite sides of the flange 6 of the bracket 5.

The movement of the drier is arrested when it 25 is swung in a counter-clockwise direction through engagement between the arm I9 of the bell crank lever Il) and the side of the bracket 5, and when swung in a clockwise direction through engagement between the arm I9 and a lug 24 formed on 30 the upper side of the bearing "I,

It will be noted from an inspection of Figure 1 of the drawings, that when the drier is swung in a counter-clockwise direction to its upper or retracted position, the pivot pins I'I and 22 between 35 the arm I6 of the bell crank lever I0 and the ange I8, and between the upper end of the link ZI and the flange I8, respectively, both pass over the shaft 8 so that the mechanism will remain in its retracted position under the influence of grav- 40 ity. When the handle 20 of the bell crank lever I0 is raised in order to project the drier toward the object being dried, the pins I1 and 22 are both swung in a clockwise direction to a position on the other side of the shaft 8, and the drier is iixed in an adjusted position with respect to the object being dried by means of the clamping nut I3.

The radius of movement of the arm I6 of the bell crank vlever I0 is considerably less than the radius of movement of the link 2|, and conse- 50 quently when the drier is swung in a clockwise direction, from the position shown in Figure l to that illustrated in Figure 2, the casing I will rst move forwardly and downwardly over the head of the person whose hair is being dried, and then as the swinging movement continues, the casing will Vtilt slightly in an upward direction so as to move the lower edge ofthe casing gently beneath the hair adjacent to the nape of Ythe neck. This movement of the casing is diagrammatically illustrated at 25 in Figure 5 of the drawings.

The parts are so constructed and arranged that the center of gravity of the drying mechanism occupies a position considerably to the left of the geometric center of the device, as viewed in Figures l and 2 of the drawings, and substantially above the several points of pivotal connection between the drier and the support 4. As a result the mechanism is so balanced that it may be shifted between an operative position and a retracted position, with comparatively little effort by the operator. It will also be noted that the distance between the axis of the shaft 8 and that of the pin I1 is relatively small as compared with the distance between the `pins 22 and 23 of the link 2l.- As a result, the mechanical advantage of the linkage mechanism is relatively great considering the range of movement of the casing I.

It will be understood by those skilled in the art that the embodiments herein disclosed accomplish the principal objects of the invention, and it will be apparent that 'the invention embodies uses and advantages other than those herein particularly referred to, and it will be further apparent that various changes and modifications may be made in said embodiments without departing'from the spirit of the invention, and

accordingly the disclosure herein is illustrative only and the invention is not limited thereto.

I claim:

1. A drier, comprising: a support; a member having a front portion adapted to be directed toward an object to be treated; and a pair of links swingably connecting said member and said support for limited swinging movement of said member in opposite directions, each of said links having one end pivotally connected to a iixed point on said support, and its opposite end pivotally connected to said member, said fixed pivots being spaced and positioned so that a line extending therethrough lies substantially parallel to a longitudinal axis through said member, when shifted lto the end of its swinging movement in one direction, and the pivotal points of said links with said member being spaced and positioned so that a line extending therethrough lies substantially at a right angle to the longitudinal axis of said member, when shifted to the end of its movement in the said direction.

' 2. A drier comprising: a support; a member having a front portion adapted to be directed toward a subject to be treated; a pair of links swingably connecting said member and said support, and means for limiting the swinging movement of said member in opposite directions, each of said links having one end pivotally connected to a iixed pivot on said support, and its opposite end pivotally connected to said member, said fixed pivots being spaced and positioned so that a line extending therethrough lies substantially parallel to a longitudinal axis through said member, when shifted to the end of its movement in one direction, and the pivotal points of said links with said member being spaced and positioned so that a line extending therethrough lies substantially at a right angle to the longitudinal axis of said member, when shifted tothe end of its movement in the said direction, said links being operable to move said member toward one side of said support to dispose the same in position to treat said subject, and returnable to move said meniber in an opposite direction to a position of rest, the pivotal points of connection of said links with said member in its position of rest'being disposed past the vertical center of said support and at one side of the fixed pivots on said support, to maintain said member in its at rest position.

3. A drier, comprising: a support; a member having a front portion adapted to be directed toward an object to be treated; and a pair of links swingably connecting said member and said support for limited movement in opposite directions, each of said links having one end pivotally connected to a fixed pivot on said support, and its opposite end pivotally connected to said member, said fixed pivots being spaced and positioned so that a line extending therethrough lies substantially parallel to a longitudinal axis through said member, when shifted to the end of its movement in one direction, and the pivotal points of said links with said member being spaced and positioned so that a line extending therethrough lies substantially at a right angle to the longitudinal axis of said member, when shifted to the end of its movement in the said direction, one of said links adjacent the rear of said apparatus and adjacent the fixed pivot thereof having an angular extension providing a handle by which said member and links may be manipulated.

4. A drier, comprising: a supportpa member having a front portion adapted to be directed toward an object to be treated; and a pair of links swingably connecting said member and said support for limited movement in opposite directions, each of said links having one end pivotally connected to a fixed pivot on said support, and its opposite end pivotally connected to said member, said xed pivotsrbeing spaced and positioned so that a line extending therethrough lies substantially parallel to a longitudinal axis through said member, when shifted to the end of its movement in one direction, and the pivotal points of said links with said member being spaced and positioned so that a line extending therethrough lies substantially at a right angle to the longitudinal axis of said member, when shifted tothe end of its movement in the said direction; and means for securing said links in any position of adjustment throughout their range of movement.

5. A drier, comprising: a support; a member having a front portion adapted to be directed toward an object to be treated; and a pair of links swingably connecting said member and said support for limited movement in opposite directions, each of said links having one end pivotally connected to a fixed pivot on said support, and its opposite end pivotally connected to said member, said nxed pivots being spaced and positioned so that a line extending therethrough lies substantially parallel to a longitudinal axis through said member, when shifted to the end of its movement in one direction, and the pivotal points of said links with said member being spaced and positioned so that a line extending therethrough lies substantially at a right angle to the longitudinal axis of said member, when shifted to the end of its movement in the said direction, said links being of unequal lengths to effect clockwise rotation of said member during a portion of its travel in one direction, and to effect counter-clockwise rotation thereof along another portion of its travel in the same direction.

6. A drier, comprising: a support; a member having a front portion adapted to be directed toward a subject to be treated; and a pair of links swingably connecting said member and said support for limited movement in opposite directions, each of said links having one end pivotally connected to a fixed pivot on said support, and its opposite end pivotally connected to said member, said fixed pivots being spaced and positioned so4 that a line extending therethrough lies substantially parallel to a longitudinal axis through said member, when shifted to the end of its movement in one direction, and the pivotal points of said links with said member being spaced and positioned so that a line extending therethrough lies substantially at a right angle to the longitudinal axis of said member, When shifted to the end of its movement in the said direction, said links being operable to move said member toward one side of said support to dispose the same in operative position to treat said subject and being of unequal lengths to effect clockwise rotation of said member during a portion of its travel toward operative position and to effect counter-clockwise to operative position, said links being returnable to move said member in an opposite direction to a position of rest, the pivotal points of connection of said links with said member in its position of rest being disposed past the center of said support and at one side of the fixed pivots on said support, to maintain said member in its at rest position.

7. A drier, comprising: a support; a shell having a front portion adapted to be directed toward a subject to be treated; and means connecting said shell to said support for movement toward and from said subject, including a pivotal mounting on said support, and a securing element connected with said shell, and having an angular extension projecting rearwardly of said -shell and cooperating with said support in limiting the movement of said shell in one direction, said element being pivotally secured adjacent its elbow to the pivotal mounting on said support.

WENDELL L. MARTIN. 

